We divide 40974163 by 15
We're looking to find how many times 15 goes into 40974163.

On to step 1:
4 divided by 15 is 0 with a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Take the next digit (0) from the dividend and append it to 4, then repeat: 40 / 15

Moving on to step 2:
The number 15 fits into 40 2 times, leaving a remainder of 10.
Use 2 as the next digit of our solution. 
Result so far: 2.0
Deduct 30 from 40 and we're left with 10.
Bring next digit (9) of the dividend behind the 10 and repeat the process: 109 / 15

Moving on to step 3:
When dividing 109 by 15, we get 7 with a remainder of 4.
Record the quotient 7 as the next digit in the result. 
Result so far: 27.0
Subtract 105 from 109 to get 4.
Include the next digit (7) from the dividend after 4, then repeat: 47 / 15

Going ahead to step 4:
If we divide 47 by 15, we get 3 and a remainder of 2.
Record the quotient 3 as the next digit in the result. 
Result so far: 273.0
If we subtract 45 from 47, we get 2.
Bring next digit (4) of the dividend behind the 2 and repeat the process: 24 / 15

Moving on to step 5:
The number 15 fits into 24 1 times, leaving a remainder of 9.
Use 1 as the next digit of our solution. 
Result so far: 2731.0
If we subtract 15 from 24, we get 9.
Append the next digit (1) from the dividend to 9 and continue with: 91 / 15

Going ahead to step 6:
The number 15 fits into 91 6 times, leaving a remainder of 1.
Write down 6 as next digit of the result. 
Result so far: 27316.0
The remainder is 1 after subtracting 90 from 91.
Grab the next digit (6) from the dividend, add it to 1, then carry on: 16 / 15

Step 7:
16 divided by 15 is 1 with a remainder of 1.
Use 1 as the next digit of our solution. 
Result so far: 273161.0
Subtracting 15 from 16 leaves us with 1.
Include the next digit (3) from the dividend after 1, then repeat: 13 / 15

Step 8:
If we divide 13 by 15, we get 0 and a remainder of 13.
Put 0 as the next digit of the answer. 
Result so far: 2731610.0
If we subtract 0 from 13, we get 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Going ahead to step 9:
If we divide 130 by 15, we get 8 and a remainder of 10.
Use 8 as the next digit of our solution. 
Result so far: 2731610.8
If we take 120 away from 130, we end up with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 10:
100 divided by 15 is 6 with a remainder of 10.
Put 6 as the next digit of the answer. 
Result so far: 2731610.86
The remainder is 10 after subtracting 90 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

On to step 11:
When dividing 100 by 15, we get 6 with a remainder of 10.
Use 6 as the next digit of our solution. 
Result so far: 2731610.866
If we take 90 away from 100, we end up with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

The final result is 2731610.866 with a remainder of 0.001.